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ratelena [41]
3 years ago
12

What do we have to take note of when completing a ray diagram?​

Physics
1 answer:
madam [21]3 years ago
4 0

Answer:

Marked image of the top of the object

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A sled of mass 15 kg slides across the ground with a friction force of 80.85 N. What is k between the sled and the ground?
Dvinal [7]
The expression for the frictional force between the sled and the ground is:
F=k m g
where k is the coefficient of friction, m is the mass of the object and g=9.81 m/s^2 is the gravitational acceleration.

The friction force in our problem is F=80.85 N. The mass of the object is m=15 kg. Re-arranging the formula, we can find the value of k:
k= \frac{F}{mg}= \frac{80.85 N}{(15 kg)(9.81 m/s^2)}=0.55
8 0
4 years ago
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You grab a car door handle in the summer (energy transfer to heat up the handle ____) and it burns you through energy transfer.
Cerrena [4.2K]

Answer: conduction

Explanation:

Because you are physically touching the handle

6 0
4 years ago
How do you measure the amplitude of a longitudinal wave?
sp2606 [1]

You do it by the pressure difference it causes in the medium. Even in transversal waves, you usually need different units than meters because the wave has electric and magnetic vectors and not really any height to speak of.

you measure the amount of excursion from the equilibrium (no wave) level of whatever parameter is fluctuating.


3 0
4 years ago
What is the formula for Impedance for circuit with R, C, and L?
NikAS [45]

Answer:

 The formula for Impedance for circuit with R, C, and L are:

    z=\sqrt{R^{2}+\left ( \omega L-\frac{1}{\omega C} \right )^2}

The impedance Z of the series RLC circuit depend upon angular frequency ω. Impedance is measured in ohms and resistance (R), inductance reactance and capacitive reactance. Series RLC circuit consist of the resistance, a capacitance and an inductance connected in the circuits. Electrical impedance is the measurement of the opposition that a circuit present in a current.

3 0
3 years ago
which of the following are vector quantities? check all that apply. a. acceleration b. mass c. displacement d. force
Alexeev081 [22]
All are vector quantities except b. mass
6 0
4 years ago
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